Rare diseases · Sign or symptom
Abnormality of the posterior hairline
Abnormality of hairline at back of head
HP:0030141
What it means
An anomaly in the placement or shape of the hairline (trichion) on the back of the head (neck), that is, the border between skin on the back of the head that has head hair.
Part of the broader category
Abnormality of the posterior hairline
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.